Re: LVS-DR

[Peter Nash <peter.nash@xxxxxxxxxxxxxxxxx>]

> 
> hi
> I am using LVS-DR to balance 4 MS servers . Due to the nature of the
web
> application and the user behavior I had to set the connection timeout
as 30
> min . In case of  failure of one of the real servers users need
to be forced
> to connect to a different server. That means the lvs tables need to
cleared
> as far as connections from clients to the failed box , so that any
reconnect
> trail will open new connection to one of  functioning servers
. I an using
> ldirectord  to startup and monitor .
> 


Hi Mike

I'm using LVS-NAT with persistence controlled by ldirectord.
 I've found that the "quiescent=" line in ldirectord.cf
controls the behaviour you are looking for.  If "quiescent=no"
then when a realserver fails it's LVS entries are removed from the table
and clients immediately failover to an alternate server.  If "quiescent=yes"
then when a realserver fails it's entries remain in the LVS tables but
the weight is set to 0 and clients will continue to try to connect to that
server until the persistence expires.  The default setting (on my
installation) was "yes" and I had to change this to get the behaviour
I wanted.

Regards,

Peter.